Tension device for yarn-winding machines



Aug- 31 1926. 1,597,844

G. H. THOMPSON ET AL. TENSION DEVICE FOR YARN WINDING MACHINES Filed July 22 925 Patented v ,s- 1,5e7,84t

UNITED STATES PATENT QFFIB GEORGE HERBERT THOMPSON AND GEORGE DRONSFIELD, OF OLDHAIYI, ENGLAND.

TENSION DEVICE FOR YARN-WINDING MACHINES.

Application filed July 22, 1925, Serial No. 45,383, and. in Great Britain October 29, 1924.

This invention relates to improvements in The guide block A may be made of wood, tensioning or controlling devices for yarn metal, hard wax or other suitable material, winding machines to maintain the yarn or and is preferably dished on its underside at 4:) thread taut and prevent snarls and balloona to rest flat against the head of a bobbin 5 ing when winding oii a cheese cone or boband so prevent yarn getting between.

bin on to another cheese, cone or bobbin The interior of the ring D conforms to of the type in which a guide block adapted the contour of the guide block A and its to be mounted on the end of the bobbin loosely upon it and may be made of aluminispindle is formed with a ring member restuni or other material and the weight may ing upon it, the yarn passing between the vary according to the fineness or coarseness ring member and the guide block. of the yarn.

This invention consists in providing a The yarn is passed inside the ring D beguide block for mounting on the winding tween it and the guide block A and is drawn on spindle having an exterior surface of upward towards the apex and as it unwinds 15 conoidal or paraboloidal shape and a dished the rinis held in a floating or suspended base or underside to rest fiat against the condition and the yarn travels upwards and head of the bobbin or cheese and a ring round the guide block A to a guide or roller of light material resting on the guide block E. The device may be applied to pirn windthe inner surface of this ring being of coring machines, gassing frames and cheese 20 responding conoidal or paraboloidal shape to winding and similar machines.

that or the guide block, the yarn from the lVhat we claim as our invention and decbeese passing between the block and the sire to protect by Letters Patent is:

ring; during winding off. A tensioning or controlling device for The invention will be fully described with yarn winding machines of the type referred reference to the accompanying drawings in to comprising the combination with the which suiiicient of a winding machine is winding oii' spindle of a guide block mountshoivn to illustrate the invention. ed on and encircling this spindle having an Fi 1 i a front, l ati n f part of wind- Xterior surface of conoidal shape and a ing machine showing the invention applied. d shed base to rest flat against the head so 2 is an elevation of the tensioning' of the bobbin and ring of light material guide block detached. ei'icircling and resting on the guide block the Fig. 3 1s a sectional elevation. inner surrace of this ring being of corre- F1 4': is a sectional lan. ondin conoidal shape to the outer surface The tensioning guide block A is con of the guide block, the yarn from the bobstructed of conical or parabolic shape, and bin passing between the 'uide block and is mounted on the stationary drawing off the ring during winding ol't. spindle B of a winding machine above In testimony whereof We have hereunto either a cheese C or a cone or bobbin and set our hands. upon the guide block is placed the tension- 40 inc; ring D of corresponding shape between GEORGE HERBERT THOMPSON.

which and the guide block the yarn or GE R E DRONSFIELD.

thread is passed. 

